Cisco NCS 540 Series

Specifies the autonomous system number for the confederation ID.
Step 5 address-family vpnv4 unicast
Example:
RP/0/RP0/CPU0:router(config-bgp)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-af)#
Configures VPNv4 address family.
Step 6 neighbor ip-address
Example:
RP/0/RP0/CPU0:router(config-bgp-af)# neighbor 10.168.40.24
RP/0/RP0/CPU0:router(config-bgp-nbr)#
Places the router in neighbor configuration mode for BGP routing and configures the neighbor IP address
10.168.40.24 as a BGP peer.
Step 7 remote-as autonomous-system-number
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# remote-as 2002
Creates a neighbor and assigns it a remote autonomous system number.
Step 8 address-family vpnv4 unicast
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbr-af)#
Configures VPNv4 address family.
Step 9 route-policy route-policy-name in
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy In-Ipv4 in
Applies a routing policy to updates received from a BGP neighbor.
Step 10 route-policy route-policy-name out
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy Out-Ipv4 out
Applies a routing policy to updates advertised to a BGP neighbor.
L3VPN Configuration Guide for Cisco NCS 540 Series Routers, IOS XR Release 6.3.x
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MPLS L3VPN Overview
Configuring EBGP Routing to Exchange VPN Routes Between Subautonomous Systems in a Confederation